Residual error evaluation method-based rotating speed sensor state monitoring method
A speed sensor and residual technology, applied in the field of speed sensor state monitoring based on residual evaluation method, can solve problems such as abnormal speed sensor signal, missed diagnosis of abnormal state, failure to analyze the running state of automatic transmission device, etc., to achieve timely and accurate diagnosis , Improve the effect of accurate diagnosis ability
Active Publication Date: 2022-07-15
CHINA NORTH VEHICLE RES INST
View PDF6 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, due to abnormal conditions such as sensor installation gaps, loose sensor connectors, and electromagnetic interference, the signal of the speed sensor may be abnormal. It is of great significance to study an effective monitoring method for the state of the speed sensor to improve the reliability of the automatic transmission device.
[0003] Retrieval of related patents and documents at home and abroad, found "a method and device for abnormal state diagnosis of speed sensor signal", disclosed a diagnosis method based on speed amplitude threshold and speed change rate threshold, but analysis of the patent found that the The patent does not analyze the operating state of the automatic transmission during the diagnosis of the speed sensor, that is, the diagnosis is performed during both shifting and non-shifting. Due to the nonlinear characteristics of the automatic transmission during the shifting process, in order to avoid misdiagnosis of the state, the speed Both the amplitude threshold and the speed change rate threshold are limit operating condition thresholds, which may easily cause missed diagnosis of abnormal states and affect the real-time performance of fault diagnosis.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0046] In order to make the purpose, content, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0047] The present invention is a state monitoring method of a rotational speed sensor based on a residual evaluation method, which can be applied to the design of any vehicle fault diagnosis system (health management system) equipped with a hydromechanical transmission device (such as a comprehensive transmission device, an AT transmission, etc.). middle.
[0048] refer to figure 1 , figure 2 , the present invention provides a method for monitoring the state of a rotational speed sensor based on a residual evaluation method, comprising the following steps:
[0049] (Step 10) Recognition of the working condition of the automatic transmission: collect the target gear and the actual gear of the automatic transmission, and judge wh...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a rotating speed sensor state monitoring method based on a residual error evaluation method, and belongs to the technical field of hydraulic mechanical transmission devices. According to the monitoring method, by judging the signal residual error of the rotating speed sensor, the problem of real-time and accurate monitoring of the state of the rotating speed sensor of the hydraulic mechanical transmission device is successfully solved, and the method is successfully applied to fault diagnosis strategy design of various transmission systems.
Description
technical field [0001] The invention belongs to the technical field of hydromechanical transmission devices, and in particular relates to a state monitoring method of a rotational speed sensor based on a residual error evaluation method. Background technique [0002] With the rapid development of equipment industry, automatic transmission as a typical transmission has been widely used in the field of special vehicles. As an important control variable, the rotational speed signal plays a decisive role in shifting process control and torque converter unlocking control. The reliability of the speed signal is a prerequisite for the system to control, so it is very important to diagnose the status of the pump wheel speed, turbine speed and output shaft speed sensor. However, due to abnormal conditions such as sensor installation gap, sensor connector loose, electromagnetic interference, etc., the signal of the speed sensor may be abnormal. It is of great significance to study an...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/02G01P5/00
CPCG01P21/02G01P5/00
Inventor 衣超仇滔王德文周广明吕庆军胡铮马良瞻李慧渊宋振川
Owner CHINA NORTH VEHICLE RES INST